Antiskid device.



W. H. BROWN.

ANTISKID DEVICE.

APPLICATION men mus. 1912.

Patented Aug. 28, 1917.

I j I r 6mm Q WILLIAM H. BROWN, or m AMABETVILLE, NEW YORK.

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Specification of Letters Patent.

Patented Aug. 28, 1917.

Application flled January 23, 1917. Serial No. 148,867.

To allwhom it may concern:

Be it known that I, WILLIAM H. BROWN, a citizen of the United States, residing at Margaretville, in the county of,Delaware and State of New York, have invented a new and useful Antiskid Device, of which the following is a specification.

The present invention appertains to antiskid devices for use upon the pneumatic or other tires of automobiles and other vehicles, and it is the object of the invention to provide a novel and improved device of that character for facilitating traction and preventing skidding, the device being of special construction in order to obtain a firm grip or hold on the ground, ice, snow, or the like, it being simple and inexpensive as well as etficacious. i

With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed it being understood that changes in the precise embodiment of the invention herein disclosed, can be made Within the scope of what is claimed, without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawing, wherein Figure l is a. fraglnental plan view of the anti-skid device or chain, illustrating two of the shoes.

Fig. 2 is an end view of one of the shoes illustrating the curvature thereof to conform to the transverse curvature of the tire.

Fig. 3 is a cross section taken on the line 3-3 of Fig. 1.

The present device embodies a series-of shoes 1 to surroulul tllt tll'll, and said shoes are of cruciform or X-shape. The shoes are drop forged from suitable metal and arc relativcly thin, to fit snugly against the tread ot the tire. 'lhc tonguwshapml arms 2 of each shoe arc disposed in oblique or diagonal arrangmncnl. two arms projcrling along diverging lincs tou'ard one side and the other two arms projecting similarly toward the other side. l iclwcon the ends of said pairs of arms-tho show is curved on an arc, as seen in Fig. 2. to conform to the transverse curvature of the tire. The edges of the arms 2 are rounded oil as soon in Fig. 3, to prevent the chafing of the tire, and the arms arc or diagonallv will prevent the displacement of the shoes when the wheel rotates in either direction, the pull being properly transmitted from each shoe by the elements 4: to the elements 5.

The shoe 1 is provided with an integral cruciform or X-sl aDed rib 6 extending from its outer face wil i .s arms 7 extending alon the intermediate portions of the arms 2 0? the body of the shoe. The arms 7 terminate short of the slot or apertures 3, whereby the ends of the arms 7 which extend close to the apertures 3 will in engaging the underlying surface protect the connections between the elements 4 and shoe asmuch as possible. The arms 7 of the rib are V-shap d cross section, as seen more clearly in Fig. 3, and the arms 7 are relatively narrow, leaving relatively wide bearing surfaces of the arms 2 extending completely around the arms Tof the rib.

The present shoe has V-shaped portions projecting in opposite directions longitudinally of the tire, and in opposite directions transversely of the tire, whereby to facilitate traction or to cause the wheel to obtain an eflective grip on the ground 0: un-

derlying surface when the wheel is rotated in either direction, and to prevent the lateral skidding of the tire. The body portion of the shoe provides a broad bearing surface to engage the road, the edges of thebody also being'engageahle with the ground, ice, or the like, to prevent slipping, and the rib (1 bring engageable into the ground, ice, or the like, said rib having u relatively sharp edge. The coustrucliou is such that the shoe will not become clogged with snow, ice or other forcigumattcr, and provides a practical and desirablemeans for accomplishing the desired end. I

llaviug thus dcscrilmd the invention, what is claimed as new is:-

An anti skid shoe of crucifonm shape having relatively broad arms dixerging toward opposite sides, the shoe haying a, cruciform rib projecting theiei'rmi with its arms extending between the edges of the afore- 5 said arms and t-erminutin': short of the ends thereof, the end portions of the first mentioned arms having apertures beyond the ends of the second mentioned arms for the attachment of retaining means, the second mentioned arms being relatively narrow and 10 V-shaped in the cross section.

In testimony that I claim the foregoing as my own, I have hereto eflixed my signature in the presence of two witnesses.

WILLIAM H. BROWN. Witnesses:

IVY E. SIMPSON, PHILOMENA A. RooKELLI. 

